<!--
function Is()
{
 var agent      = navigator.userAgent.toLowerCase();
 this.major     = parseInt(navigator.appVersion);
 this.minor     = parseFloat(navigator.appVersion);
 this.ns        = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') ==-1)));
 this.ns2       = (this.ns && (this.major == 2));
 this.ns3       = (this.ns && (this.major == 3));
 this.ns4b      = (this.ns && (this.minor < 4.04));
 this.ns4       = (this.ns && (this.major >= 4));
 this.ie        = (agent.indexOf("msie") != -1);
 this.ie3       = (this.ie && (this.major == 2));
 this.ie4       = (this.ie && (this.major >= 4));
 this.op3       = (agent.indexOf("opera") != -1);
 this.win       = (agent.indexOf("win")!=-1);
 this.mac       = (agent.indexOf("mac")!=-1);
 this.unix      = (agent.indexOf("x11")!=-1);
}
var is = new Is();
if (is.ns) {
 doc = "document";
 estilo = "";
 }
if (is.ie4) {
 doc = "document.all";
 estilo = ".style";
 }
function AbrirVentana(Archivo,Ancho,Alto, NombreV)
{
 window.open(Archivo, NombreV,'width=' + Ancho + ',height=' + Alto +',scrollbars=0,toolbar=no,status=no')
// window.open(Archivo, 'Ventana','width=' + Ancho + ',height=' + Alto +',scrollbars=' + Barras + ',toolbar=no,status=no')

}
var LaImagen = new Image();
var LaImagenDown = new Image();
var LaImagen2 = new Image();
var LaImagenDown2 = new Image();

function CambiarImg(IdImg, Img)
{
 LaImagen = eval(doc + '["' + IdImg + '"]');
 LaImagen.src = "img/" + Img;
}
function CambiarImg2(IdImg2, Img2)
{
 LaImagen = eval(doc + '["' + IdImg2 + '"]');
 LaImagen.src = "img/" + Img2;
}
function CambiarImgM(IdImg, IdImgDown)
{
 LaImagen = eval(doc + '["' + IdImg + '"]');
 LaImagenDown = eval(doc + '["' + IdImgDown + '"]');

 LaImagen.src = "img/" + IdImg + "2.gif";
 LaImagenDown.src = "img/" + IdImgDown + "3.gif";
}
function CambiarImgM2(IdImg2, IdImgDown2)
{
 LaImagen2 = eval(doc + '["' + IdImg2 + '"]');
 LaImagenDown2 = eval(doc + '["' + IdImgDown2 + '"]');
 
 LaImagen2.src = "img/" + IdImg2 + ".gif";
 LaImagenDown2.src = "img/" + IdImgDown2 + ".gif";
}

// -->